Wringer



1936- w. KAUFFMAN. 2D 7 2,065,329

WRINGER Filed Nov. 10, 1931 2 Sheets-Sheet l ENTER.

A TTORNEYS.

w. L. KAUFFMAN. 2D 2,065,329

WRINGER Filed Nov. 10, 1931 2 Sheets-Sheet 2 I VENTOR.

mi/M I ATTORNEYS.

Patented 22, 1936 umrso STATES ,gArsu T OFFICE i WRINGER Application November l0, 1931, Serial No. 574,063

'14 Claims.

Power wringers are usually provided with a safety release device which is ,intended to relieve the pressure on the rollsin case of accident. The present invention accomplishes such a release by detaching the topbar. The pressure of the tension means which must be released is quite large and wherethe release is accomplished against the frictional resistance of the engaged parts the effort for the operator is objectionable. The present invention is designed toobviate this by so effecting the release as to avoid such resistance When the top bar, or parts are released, there is a tendency of the tension devices to throw the'parts released which .is objectionable. The present invention contemplates the arrestingof this movement. 1 The invention also contemplates an assembly and support of the bearings. Features and details of the invention willappear fro ber of the latch.

Fig. 4 a section on the line 4--,4 in Fig. 2.

Fig. 5 a perspective view of the releasing member of the latch.

Fig. 6 a perspective 'view of a stirrup construction forming the assembly and support for the bearing and a stop for the detached parts.

Fig. '7 a vertical-section on the line 1-1 in Fig. 1. T

Fig. 8 a section, on the'line 88 in Fig. 1.

Fig. 9 an elevation of a wringer frame partly in section showing a modification.

Fig. 10 a View of the latching end of a cross bar showing a further modification.

I marks the base of the frame and 2 the side stiles. These are preferably formed of sheet metal. The side stiles are of box shape. 3-3

mark the wringer rolls,- 4-4 the rods' of the wringer rolls, 5 bearings for the lower roll, and 6 bearings for th'e upper roll, these bearings being mounted in the stiles from the top. The

stiles are slotted on their inner faces" at 'I permitting the entrance of the rods into the stiles and into place in the bearings: These slots preferably run through the top permitting the easy assembly of the rolls. A spring 8 is seated on the upper bearings. A top bar 9 is formed of inverted channel shape, the channels being closed at the ends and the ends of the stilesv extending upwardly into the channel opening. An adjusting screw HI extends through a nut II which is fixed in the cross bar at its center. The screw is secured at l2 by a ball and socket joint with the spring". The stile at one end has a shoulder l3 struck'up from its outer face and the end of the top bar has a corresponding lip l4 formed in it forming an engaging shoulder l5. below the-cut forming the lip. This connection detachably connects the cross bar with the stile. At the opposite end of the cross bar a locking latch'IB is pivotally connected with the stile, the latch having perforations I! which extend over ears 18 struck up from the front and rear faces of thestlle'. The slot I1 is such as to permit a limited 'jrocking movement of the latch and to fermastop limiting this movement so asztto hold the'latch member in position to be automatically engaged when the parts arefassembled. The locking latch member l6 extends to both sides'of the stile having a connecting portion IB'eXtending around the outer face of the stile. The locking member has hooks 20. A releasing latch member 2! is of channel form and'extends over the top bar. It is provided with pintles 22 struck up from its sides and these pintles extend into openings 23in the cross bar. Catch surfaces, 24 are formed between the pintles 22 and the side walls of the releasing member and these engage the hooks 20. A spring 25 is secured to the top bar and operates against the release, member to yieldingly hold it in locked pos i tion. .-In the operationof the releasing mechanism; the operator depresses the release member and this rocks the engaging surfaces-f24 without the necessity through the eifort' of the operator to overcome any frictionalresistance. As soon as the surface 24 hasbeen tilted 'sufficiently that friction will not' holdthe hooks on the surface 24 the hodks slide off, the locking member swingingto permit this sliding movement and thus disengage the latch. The effort necessary to rock, 'or tilt, the surface is 'very slight so that'the disengagement maybe readily accom- 'plishedg When this is disengaged the top har swingsnpbn the shouldersi5 and i3 until its;

' has reached a high enough position to disengage the shoulder. V j This upward movement of-t'he top bar whenv fore, desirable to retard this up-throw afterthe tion the bearing blocksare-providedwith-"grooves ranged in these grooves.

bar. The stirrup has indentures which are below the upper bearing and prevent the dropping down of the bearing into'engagement withfthelower bearing. Where thisis in the hands oi the operator, if this bearingdoes slidedown jtothe; lower position, the operator is confusedasto-the' re-assembly of the parts. The lower,end of; the side plates 21 are bent inwardly form a base support 3| and this base support-has the inner ends braced by plates 32; the-ends of. which rest on the struck-up shoulders I} in the side stiles. Thus the lower bearing is supported I I I an'd'rthatthe latch 53 exten ,nec tion' 53a, at the opposite s A release lever 51 is pivoted n the bolt 54 and the two bearings are arranged in the assembly and the stirrup at the top engages the spring. as it moves upwardly-so as to retard the upward movement of the top-bar, the spring being secured at the center to the screw in and the screw being secured. in the top bar. 1 'Whilethe bearings are assembled by simply placing them' foration in the outer wallofthe, side stile as indicated in Fig. 1 and inasmuch. asthis'shaft cannot be lifted at this-end this forms a'positive stop connection for thearresting stirrup 5 and the side stile. The spring striking the stirrup cushions the blow through a reverse deflection of the spring. In the structure shown in Fig. 1, the stirrups are arranged at both ends so as to retard the upward movement of the cross bar under all conditions.

In FigL/QI have shown an alternative construction.- In this structure the top bar 34 is provided with a fitting 35 in which is arranged a release pin 35. The pin has an operating handle 31 and locking shoulders 38. The shoulders operate .on cams 38 and are releasable through slots 40 extending through the fitting when they are turned at right angles. An adjusting screw 4| extends through the pin 35 and is secured to the spring. mechanism releases the pressure on the spring and operates substantially in the manner described in the reissue patent to Misner, #I5,865. The side stilehas a shoulder 42 and a lip 43 is struck Ollii'Of .the top bar 34 forming a shoulder 44 which engages the shoulder 42 looking this end of the cross bar in the manner similar to that shown in Fig. 1. "At the opposite end of the cross bar a latch 45 is pivotally mounted on a rod 46'. The latch has a hook 48 which. engages a struck-up ear 49 on the stile. The latch has an extension 50 and these extensions are connected by a cross plate 50a, the latch extending to both sides of the cross bar through. the connecting extension which is arranged within the top bar. An ear 5| extends from the cross plate 50a. and engages the under-side of the cross bar to locate the latch so that the hooks will automatically ermage the ears when- This releasing 'lj 'aoeasscI release is accomplished In1 the" pressurised-j of the spring opposite the latch so that that end [of the spring is more definitely retarded and consequently. the opposite ehdof' the spring is more definitely/V lifted so as to eflect a release of the latch. Ordinarily no ,stirrup is used in.-

the latch endofthe wringer-shown in Fig. 9.

- Fig .-,10 'I have.shown an alternative construction' iriywhich' the disengagement of the latch forthetop bar is accomplished without 'overcomingthe resistance incident t'o the fric; tional engagementor the locking parts. In his "structure a top 52' carries a latch 53 .wwhieiris pivoted awn? 54 extending through th" pp..-'bar. 'It isrprovided witha h0ok 55 "enwill, be underthat the stile'has' the' ear v through a conthe cross bar.

the. end 58 of this lever extends through a per,- fqration 59 in the wall of'the side stile. The other parts of this struct'ureare similar to those shown" in Fig. 1. When the release lever is depressed, the engagement between the hook 55 and car 55 is broken, the hook being moved slightly downwardly from the surface of the ear. The latch 55 through the ,cross member 530. is weighted by the cross member so that as soon as the frictional resistance of the surfaces is relieved the latch swings out permitting an immediate release 'of the hook surfaces.

What I claim as new is:'-

1. In a wringer, the combination or a frame having side stiles; wringer rolls; pressure applying means for the rolls; a quick release for relieving pressure on-the rolls comprising a latch mechanism having pivotally mounted latch members, said members having opposing engaging I mit" the use'oi aspiing of greater initial curve I prefer in thisstrueture the same stirrup 21 shown in Fig. 1 operating on the end pressure sustaining surfaces extending crosswise of the line of thrust between the pivots of the pivotally mounted members, said' members being disengageable by relative movement laterally of the direction of thrust, one of the members being tiltable with nonfrictional relative movementof the members; and means moving the tiltable member to a disengaging inclination for releasing the latching mechanism and relieving the pressure on the rolls.

2. In a wringer, the'combination of aframe having side stiles; a top bar; wringer rolls; pressure applying means for the rolls reacting against the top bar; a quick release for relieving pressure on the rolls comprising a latch connection between the top bar and a stile, said connection having pivotally mounted latch members, said members having opposing engaging pressure sustaining surfaces extending crosswise of the line of thrust between the pivots of the pivotally mounted members, said members being disengageable by lateral relative movement of the surfaces, one of the members being tiltable with non-frictional relative movement of the engagthe top bar; a quick release for relieving presand an arresting member for the assembly exsure on the rolls comprising a latch connection between the top bar and a stile, said connection having pivotally mounted latch members, said members having opposing engaging pressure sustaining surfaces extending crosswise of the line of thrust between the pivots of the pivotally mounted members, said members being disengageable by lateral relative movement of the surfaces, one of the members being tiltable with non-frictional relative movement of the engaging surfaces; means moving the tiltable member to move the surfaces to a disengaging inclination for releasing the latching mechanism and disengaging the top bar from the stile; a movable connection between the top barand the opposite stile; and means retaining the latch members in position to automatically engage as the bar is put,

in position on the stile. 1

4. In a wringer, the combination of an open top rigid frame comprising a base and hollow side stiles; wringer rolls; bearings for the wringer rolls in the stiles; a top bar and plate spring assembly exerting pressure on the bearings of the upper roll, said spring reacting on the top bar; a quick release for one end of the top bar;

tending telescopically into a stile and being guided by the stile; means positively-limiting the upward movement of the member relatively to the stile and arresting the assembly when the top bar is released and a connection between the end of the top bar and the stile opposite the release. q

5. In a wringer, the combination of a frame having hollow side stiles and a top bar; wringer rolls; bearings for the wringer rolls in the stiles; a plate spring exerting pressure on the bearings of the upper roll and secured to and reacting from the top bar; aquick release for one end of the top bar; through said spring, the upward movement of said end of the top bar upon release, the top bar being vertically movable relatively to the memher and said member being in the path of and engageable by the spring in its upward movement with the top bar; and a connection between the end of the top bar and the stile opposite the release.

6. In a wringer, the combination of a frame having hollow side stiles and a top bar; wringer rolls; bearings for the wringer rolls in the stiles; a plate spring exerting pressure on the bearings of the upper roll and secured to and reacting from the top bar; a quick release for one end of the top bar; an arresting member for each.

endof the top bar limiting, through said spring; the upward movement of each end of the top bar upon release, the top bar being vertically movable relatively to the arresting member and said arresting member being in-the path of and engageable by the spring in its upward movement with the top bar and through said spring arresting the movement of the top bar when released; and a movable connection between the end of the top barand the stile opposite the release.

7; In a wringer, the combination of a frame having hollow side stiles and a top bar; wringer rolls; bearings for the wringer rolls in the stiles; a plate spring exerting pressure on the bearings of the upper roll reacting from the top bar; a

quick release for one end of the top bar; an arresting member limiting, through said spring, the upward movement of said one end of the top bar upon release, the top bar being vertically an arresting member limiting,-

ment of the member relatively to the stile and arresting, through said spring, the top bar when released; and a movable connection between the end of the top bar and the stile opposite the release.

8. In a wringer, the combination of a frame having hollow side stiles and a top bar; wringer rolls; bearings for the wringer rolls in the stiles; a plate spring exerting pressure on the bearings of the upper roll and secured to and reacting from the top bar; a quick release for one end of the top bar; an arresting member limiting, through the spring, the upward movement of said end of the top bar upon release, the top bar being vertically movable relatively to the member and said member being in the path of and engageable by the spring in its upward movement with the top bar and retarding, through the spring, the movement of the top bar when released, said arresting member extending telescopically into a stile and being guided by the stile; anda movable connection between the end of the top bar and the stile opposite the release.

9. In a wringer, the combination of a frame having side stiles; a top bar; upper and lower wringer rolls; upper and lower bearings for the rolls arranged in the stiles; a plate spring exerting pressure on the upper bearings secured to and reacting on the top bar; a quick release effecting a release of the top bar and relieving pressure on the upper bearings; and a stop member extending past an upper bearing and secured to the lower bearing, said member having a shoulder in the path of the spring when the top bar is released.

10. In a wringer, the combination of a frame having side stiles; a top bar; upper and lower wringer rolls; upper and lower bearings for the rolls arranged in the stiles; a plate spring exerting pressure on the upper bearings secured to and reacting on the top bar; a quick release effecting a release of the top bar and relieving pressure on the upper bearingsyand a stirrup having sides extending downwardly past the lower bearing and secured thereto, said stirrup having a cross member at the top above the spring adapted to retard the spring when released.

11. In a wringer, the combination of a frame having side stiles; a top bar; upper and-lower wringer rolls; upper and lower bearings for the rolls arranged in the stiles; a plate spring exerting pressure on the upper bearings secured to and reacting on the top bar; a quick release effecting a release of the top bar and relieving pressure on the upper bearings; and a stirrup having sides extending downwardly past the lower.

upper and lower bearings for the rolls arranged I extending past an upper bearing, said member having a shoulder limiting thedownward'move-g g-14,'In"- ment of the upper bearing. j having destiles; a top bar; upper and lower 13. In a wringer, the combination of g -vw ingje lfr0118; vupper and lower bearings for the having side stiles; a top bar; upper and lower -rqllsarranged in the stiles; a platespring exert- 5 wrlnger rolls; upper and lower bearings ,fofr he; ing pres'sureon the upper bearings'secured to and rolls arranged inthe stiles; a plate spring exert- 7 reacting on the top bar; a quick release efiecting ing pressure on the Upper bearings secured to n release of the top barand relieving pressure and reacting on the top bar; a quick release ,on' the upper bearings; and a stirrup having effecting a release 19! the top by: and relieving sides extenki sb t he pp r be r and se- 10 pressure on the upper bearings; and a stop mem- ""bured to the'lowe'r bearing, the stirrup having a 10 her extending past an upper bearing and secured cross member above the spring and adapted to v to the lower bearing, "said member having a. retard the spring on the release of the top'bar, shoulder in the path of the spring when the top said assembly of-bez'iriiags and stirrup beingslid ringenthe combination of a. frame bar is released and a shoulder ilirnitin g'the 'downingly moi'mted'in the side stiles. 15 ward movement of the upper bearing. N WALTERL. KAWAN JIL' 15 D TSC AIME 2,065,329 .Walt er L. II, Erie, Pa. WRINGER. Patent dated December 22,}936. .Diselalm'er filed June 17, 1940, by the assignee, Lovell Manufacftur'mg Company- Hereby enters this disclaimer to claim 4 of said patent. [Qfi l Gaett e July .9, 1940.]

having a shoulder limiting thedownward'move-g g-14,'In"- ment of the upper bearing. j having destiles; a top bar; upper and lower 13. In a wringer, the combination of g -vw ingje lfr0118; vupper and lower bearings for the having side stiles; a top bar; upper and lower -rqllsarranged in the stiles; a platespring exert- 5 wrlnger rolls; upper and lower bearings ,fofr he; ing pres'sureon the upper bearings'secured to and rolls arranged inthe stiles; a plate spring exert- 7 reacting on the top bar; a quick release efiecting ing pressure on the Upper bearings secured to n release of the top barand relieving pressure and reacting on the top bar; a quick release ,on' the upper bearings; and a stirrup having effecting a release 19! the top by: and relieving sides extenki sb t he pp r be r and se- 10 pressure on the upper bearings; and a stop mem- ""bured to the'lowe'r bearing, the stirrup having a 10 her extending past an upper bearing and secured cross member above the spring and adapted to v to the lower bearing, "said member having a. retard the spring on the release of the top'bar, shoulder in the path of the spring when the top said assembly of-bez'iriiags and stirrup beingslid ringenthe combination of a. frame bar is released and a shoulder ilirnitin g'the 'downingly moi'mted'in the side stiles. 15 ward movement of the upper bearing. N WALTERL. KAWAN JIL' 15 D TSC AIME 2,065,329 .Walt er L. II, Erie, Pa. WRINGER. Patent dated December 22,}936. .Diselalm'er filed June 17, 1940, by the assignee, Lovell Manufacftur'mg Company- Hereby enters this disclaimer to claim 4 of said patent. [Qfi l Gaett e July .9, 1940.] 

